The ripple effects of Donald Trump's global trade war are increasingly being felt across numerous industries all at once and on Wednesday were once again exerting pressure on U.S. stock markets that have been roiled for weeks by his erratic trade policies.

United States President Donald Trump has touted “big progress” in trade talks with Japan after making an unexpected intervention in the negotiations, as uncertainty caused by his sweeping tariffs continues to roil stock markets.

In the United States, regulations permit penalties for what is termed insider trading. Recent actions by U.S. President Donald Trump have sparked a debate about potential violations of these regulations,